Mini air pump



FIG. 1 is a perspective view of a mini air pump showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken lines in the drawings illustrate portions of the mini air pump that form no part of the claimed design. 

CLAIM The ornamental design for a mini air pump, as shown and described. 